Builds an item edit form. The arguments to getCMSFields() are the popupController and popupFormName, however this is an experimental API and may change.
Signature
public function ItemEditForm()
Returns
Form
Line
Task
28+
In the future, we will probably need to come up with a tigher object representing a partially complete controller with gaps for extra functionality. This, for example, would be a better way of letting Security/login put its log-in form inside a UI specified elsewhere.